Perovskite solar cells have recently drawn increasing attention for high conversion efficiency, easy fabrication and low cost. This type of solar cells, which were introduced in 2009 with the efficiency of 3.8, achieve 22.1 efficiency in 2016. Here, organometal halide perovskite-based solar cells and their component are described. Then, Advantages and disadvantages of this type of cells; as well as recent research are reviewed.